And when sulphuric acid dissolves limestone 硫酸在溶解石灰岩的同时
They discovered that Lechuguilla's limestone had actually been eaten away by sulphuric acid, 他们发现龙舌兰洞的石灰岩 实际上是被硫酸侵蚀的
the drops dripping from the ends are sulphuric acid, 其末端滴落的液滴就是硫酸
is actually coloured white with sulphuric acid. 竟然被硫酸染成了白色
Pools of sulphuric acid are indications that deep underground there are titanic stirrings. 这些硫酸池暗示 地底深处正进行着大规模活动